Type-writing machine.



N. H. ANDERSON, ,IYPE WRITING NIAGHENE. APPLICATION FILED OCT. I'ILIBIS.

Patented Feb. 5,1918 I 4 SHEETs-NIEET I I [NI/ENTOR WITNESSES.- [mm/ran I 7 BY N. H. ANDERSON.

'TYPE WRITING MACHINE APPLHZATION FILED OCT. H, 1913- Patented Feb. 5, 1918.

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N. H. mmzasofl." TYPE wnmm; meme" APPLICATION man oer. 11'. was; 1,255,571.. Patented Feb.1918.

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WITNESSES: INVENTOR v ZrmR/vm s N; H ANDERSON. TYPE WRITING MACHINE. ABFLICJUHON FILED DCTK iL i9l3 Patented Feb. 5,1918.

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WITNESSES:

mvEzvrpR 7 ATTORNEYS i KT NILE H. WIIERSON, OF MIDDLETOWN CO PATENT OFFICE.

NNECTICU'I, ASSIGNOR TO THE NOIQSELE$$ TYPEWRITER COMPANY, OF MIDDLETOWI Q', CONNECTICUT, A CORPORATION (91 CONNECTICUT.

TYPE-WRITING MACHINE.

Application filed October 11, 1913.

To all whom it may concern:

Be it known that Kins H. Aso ziasox, a citizen. of the United States. residing at ,lyliddletown, in the countywof Middlescx and State of Connecticut, have invented certain new and useful Improvements in Type-Writ ing Machines, of which the following is a. full, Cl81l1','fll1d exact description, such as will enable others skilled in the art to which it ap cr teins to make and use the same.

his invention relates to t ypewriting niachines, andxwith regard to certain more specific features thereof, to a mechanism for controlling a certain elass'of movements of the carriage.

One of the objects of the present inven- 'tion is to-provideu'siinple and practical arrangement ofparts so inter-related and coacting'one with another as to produce a combincd. tahulating, line-locking and marginal relcasemechnnism which will be durable in construction and efiicient in action. An-

a mechanism of the noiselcssly operating typewriting machine. A further object is to provide a mechanism of the first above-mentioned character in which the partsaru so mounted as to permit ease and freedom of movement; A further object is to provide a mechanism of the above character which will be cheap to manufacture and easy to assemble.

Other objects will he in part obvious and .-in )art pointed ourhereinafter.

he invention accordingly consists in the fea tures of construction,combinations ofelements and arrangement of parts which will be exemplified in the constructionhereinafter set fortluand the scope of the application of which will lie indicoted in the follow.- lll claims ithe. accompfinying drawings, wherein isshown one of various possible embodiments of this invention,

Figure l is a side elevation, partly in section, of the complete mechanism and such associated and coacting parts of a typewriting irrachinc as are necessary to understand the .sa'inm .g. 2 is a perspective detail view of a com nection common to several features of the mechanism Fig. 3 is ii sectional glen view of. the parse shown inv Fig. 1

Specification of Letters Patent.

Patented Feb. 5, 1918. Serial No. 794,596.

Fig. 4 is a sectional plan detail view with a portion of the cscapement mechanism;

F ig. 5 is a semi-diagrammatic sectional elevation of the tcbulating mechanism in normal position and the margin relea% mechanism in actuated position;

Fig. 6 is a similar View of the ports versed, that is, tahul ator in actuated posi tion and the margin release in up position;

Fig. '7 is an elevations]. detail View ofthc tabulating key lever;

Fig. 8 a rear elevation of u poitioii of the tahulcting mechanism;

Fig. 9 is a. sectional elevational view of line-locking mechanism. certain parts removed for the sake of clearness; and

Fig. 10 is a detail sectional view of one ill being end'of the rack.

The present invention is illustrated in the accompanying drawings and will hereinafter be described with relation to a Noiseless typewriting machine for use in which it is peculiarly designed, although it is to he understood that the invention as a Whole, and many of its component parts, are applicable. to other forms of typewriting machines as Well. The Noiseless typewriting machine,

like other forms of practical machines on-the market, comprises :1 horizontally reciprocating carriage having an intermittent letten feed increment from right to left past a common printing ioint for all of the type which are actuated by suitable fingenccntrolled means in the key-hoard of the machine. In the operation of the machine it is often desirable to move the carriage rapidly a predetermined distance from right to left,

as when tchulating or writing figures in columnsfor example, and also, when using'the machine in the usual manner, it is desirable to provide means l'or line locking the keyboard to prevent further operations when printing in the righthand margin of the if it is impossible to complete the some on platen along a in its own way and operating independently of the other. The present inventlon, however, as will appear from the following detailed description, comprises a tangle selfcontained structure having certain parts common to all mechanisms, compactly arranged and so inter-related and coacting with adjacent parts of other mechanisms as to constitute a single unitary invention.

Referring to the drawings in detail, and more particularly to Figs. 1 and 3, in which similar reference characters denote corresponding parts in these and the other views, the mechanisms are shown in a nor ,mal position. The carriage 1 carrying the roller 2 is adapted to reciprocate horizontally disposed shift rail 3 in the usual manner under the intermittent action of-the escapement mechanism 4 coacting with an escapement wheel mounted upon an intervening shaft 6 having a rack and pinion connection 7 with-the lower part of the carriage. Adjustably mounted upon a rail 9 at the rear of the carria e in such manner as to be moved manual y to any position desired, -are a plurality of stops, only two of which are herein shown, one ing a tabulator stop 8 and the other the right-hand marginal or line locking stop 10. These stops are adapted to coact with a movable stop 11 centrally disposed in the rear of the machine. In normal position as shown, the movable stop 11 clears the ta ulator stop 8 but will engage the margin or line-lock stop 10 to line-lock the keys, and in order to clear the margin stop to permit writing of additional characters as above explained, the stop 11 is thrown backward on depression of a margin release key'12 in the keyboard of the machine, as will be hereinafter more fully described in detail in the subsequent discussion of the line-locking feature of the mechanism. When the machine is used for tabulatin or column space work, this stop is thrown orward into the position shown in Fig. B'by the tabu lating key 1.3, in which position only it is adapted to coact with the tabulator stop 8.

The movable stop 11, which, for conveniencc, will be hereinafter termed the margin release lever, is carried in a rearwardly extending centrally disposed abut ment 1% adjustable fore and aft of the machine for moving the platen relatively to the normal printin position and holding it rigidly against urther rearward. movement under the'powerful action exerted by the pressure-operating type carriers. This margin release lever has, at its lower end, an offset portion 15 adapted to be pivotally mounted on a pivot screw 1-6 secured bya nut 17 on the upper side of a trunnion block 18. This compound or universal pivotal mounting of the margin release lever is for the, purpose of allowingfa lateral movement of the lever to actuate the line-lock and a fore and aft movement to release the linelock, as will be hereinafter more fully described. The trunnion block 18 is carried on the end of a horizontally disposed trans verse shaft 20, suitably supported in brackets 21, to which shaft it is clamped b suit able screws 22, the block being s otte for a portion of its length to permit a more eflicient clamping action. The opposite end of this shaft 20 is bent to one side for engagementwith the slotted end 23 of the margin release key lever 24, which is pivotally mounted on a suitable pivot screw 25 in the frame of the machine. The margin release key lever extends forward to the keyboard of the machine and is provided at one end with the key 12 placed near the front and relatively low in the keyboard in order to prevent accidental operation thereof, and a return spring 1.9 operating near its other end.

As used in connection with the tabulator feature of the mechanism, the margin release lever 11, instead of being rotated backward to clear the margin stop, is moved forward into the position shown in Fig. 6, in which position it will engage and coact with the tabulator stop 8. This forward movement of the margin release lever 11 is obtained by a depression of the tabulator key 13 in the keyboard of the machine, which is mounted upon a short key lever 26, as shown in Fig. 7 pivotally mounted upon a bracket 27 attached to the frame of the ,machine by a pivot screw 28, The normal, inactive position of the tabulator key lever is secured by a vertically disposed coil spring 30 engaging the lower part 31 of a downwardly projecting arm of the tabulator key, as shown in Fig. 7. This arm is also provided with a forwardly extending point 32 which is adapted to engage the base of the bracket on which the lever is mounted,-

thus holding the lever in normal raised position. The ear 31..to'which the upper end of the spring is connected-is disposed to pass under the margin release lever and enga e therewith whenvthe tabulator key is epressed, as shown in Fig. 6. The --engagement ofthe ear on the underside of the margin release key lever 24 rotates the latter, thus raising its front end and depressing the forked end 23, thereby causing the margin release lever 11 to rotateinward to the position shown in Fig. 6 ready for enga ement with the tabulator stop 8 carried b riage. At the same ume the hire or holding dog of the escapement mechanism 4 is disengaged from the escapement wheel 5 and the carriage is allowed to run freely unt e car- I til the stop 8 brings it to rest by engagement with the coaeting movable stop 11. It willalso be noted that the tabulator key lever is provided with an upper laterally extending upon the escapcmem cfm:

11ml mn'mgg' an up ,llv Chilllgfliflil [H C" llll'ifi mlmlab key ll '01 a rem-\wtn .53; 6%. rear end pix-wally wnnmtml' crank mm 36 xnliaunuzl m1. "a'mmaxely (Hammad shaft 3'? 12m 1 suitzml'lle brackeh 38 attached t4) he l" m film math This: aalmlfl. pre'fcamb m eslock'mmlml he arms w; Mme-hail me -4am, mm E these arm being the rmnlt mum alw'vu niwntiamall.

(I the llfiififil Ha slml'l; 3L :1: tllP. pm "slle mm. tlwmofl is) a qlnwma'm'dly Qf'llifil'idlllgl'f mm film lower earl-FL mil whiall. is wimp u szlm: tail and Q Hi holding m" 'ESfiMM-IU lag in 0 A $0 disengage this dog l am the! esmpmnem:'wlmQl when: 1'22 'ltfilmlatmis *(lfi pms-sed, therelwy premnl am fuel? jmmvml. ml m. llw carzf'mge until wreaked by the tabulaim" sl; up. lln nrdea. t0 prewnl: (flfifiifil ffllly rapid nms'emamt Mi Elm mwriznge when flue: l'u'llding d ag; is tlnowarnuut, them is @Scapemeim shaft alamke disk 4-1 adapted tn be @ngaggml by a:v friction brake Mounted bracket 4:3 by a pivot zmw as perhaps; mam clearly shwrn in Figs. l, will #3 is a. lever 4:5 carrying new? 1E2; 00v @1" *he l 'alm l he tumhrm m? by a suitable zap be regulated l) null provided (m tlv's ntwzall'v film-filing; mwl eml to ,J'lC- pull wire 5-4" vl' temling l'm'e zmn Ft ml the mzwhirm w a limo-luck hail fl-l'xl'ull pjml: ll mmmt ml 11% its curls in milzslllc llll'llffl v nltmslwl in the lii'zunc ml the in china. The uutm and (1f the pull wire puss l'ln'zmgll a rallatively, lam: lmle in an mu: m (m the lime-lu bail re, rwmgainst a suitable trauma-5e pin 58 in ulu: pull v. a The mail is reluinml in that Pflfilllflflll by the whom 01'? m cull spring 60 abwt the pull Wife, the is sign of which an adjusting nut 61 mun ay an Outer check held in mljufited. p4:

lll lfw pur '1; mi flu: wring is fix; pmrmilt te:;a'13 J-0ra2*y t ml the linelncla Emil the key levers afmr the Sam? lawn lucked in um, lcey lever is in deprwmcl tundition m, the mnment when the llllli'wllfiili ball names 13111 29 action, in Whi tl' car-am 'upmn upward mqvmmanwt of the. fielwy lEBVE-lf, the hall pushed farwuimllgr by the key lever, alley which it is bmughfi back: inw locking pusition by action 01 Hm mil spring W. is $0 kw muted this; "bail 1mm relatively close to the point. of auppllcalien m? gmav@-" on the keys, thereby" elnmimiting, as mud: po ssible, whi @f pawer multiplying rlavices intcwenmay We en the, may :1 11d le -ck as mght OZhflk- 'Wme Oscar.

1km when mwgin like 1m '1. release ll all 21 ml, nmvenw'llz of the; cmriage romlm' a? 0n its vm'lzi em-1- 18 m mum" the a null on we wzw mrcl. and a:

1m allow like linesmlz ball m {l1 0;] the um'mr lmok pnrtinns 53 a! the la -3; Hemmer Cllfis mcmamem p wents any fmlzlmr mminmml tumamelmb of any 0% (hev levers until. t1:-

relazwa lever ll hm; been aclimulefl resign of the mi. gm re. also lw i QXPlEH'lTUB-C-l" The tahulmjmg and. line-lacking while "Mil /I1 in keyhumf'd as abmr'e z l and anl. they with il'mir' supp: mm are .7 t1 .Jllll'ljj/ (1e: wad in l "a a (fillilllll (.z-r" 0 W5 rel 1011 will). tl'm mating; and Elm-lacking mecln-mis a :ul'mm: lJQ l Referring: mum.pax'timlurly tuj Fig. L time lmrly pm '5011 the st ip 10, {UT )llz, is pruv edl with a; relatively 10mg:

i a raised indicator 72 lying pressed paper scale 73 carried at the upper a coil spring 70. The upper end of the latch is provided with an operating handle 71 and flush with a dorear portion of the paper tahle 74. By having the indicator and scale lying flush with each other and with the surface of the paper table all projections with which .the paper might engage after hein fed scale are more 1 rack 9 upon which the stops are mounted-is also adjustable on its supporting web in order to bring the stops into correct relative position with the printing point, admitting of a full letter-space of the carriage just previous to the action of the ate for line locking purposes. From the e arged do tail view, Fig. 10, of one end of the rack, it will be noted that the web 66 it provided with an extension 75 which is engagedby a r nut 76 threaded on the end of the rack 9.. This nut has two functions,' the first being to hold the rack down upon the web 66 by engaging the projectiou 75, and the second, to admit of longitudinal adjust-- ment of the rack on the web. After adjusting the nut 76 a check nut 7? is brought against the same to lock ed position. The nut LT Z he slotted for the reception of a screw driver and suitably knurled for ease of adjustment and appearance. While only one end of the rack is here Sl'k0WI1,lt is of course to he understood that the opposite and is provided with a similar o mechanism. Thus as one nut 76 k in one direction to move the rack, the gposite nut 1m ay' he turned in the oppo site rection to take up the adjiustment.

Coiiperating with the adjustability of the rack, as alcove described, is asecond adjustment associated with the margin release lever 11, which is also designed to accon1- plish certain other functions, as will here inafter appearclear. This second adjust ment is mounted on the center. tie or rear abutment l i carrying the margin release lever 11. Passing through one side portion of the rear abutment is an adjusting screw and lock nut 80 adapted to limit the h teral movement of the margin release lever in the direction of IIlOVGIDEIli of the carriage when a tahulating hey depressed; that is, when the carriage is running on release oi? theescapenient, from one column to another.

On depressing the tabulator key the margin release lever 11 oscillates forward into the path of travel of the tabulator stop 8 which.

contacts therewith, thus moving margin release lever 11 into contact with the untold-- the edge of the parts in adjusted pointer the adjusting screw 80. A cavity or depressed cam surface 81 in the margin release lever 11 receives the point of the screw 80, so that when the tabulating'kcy is released and allowed to return to its normal position, the tension of the carriage under the action of its carriage drive mechanism against the margin release lever tend to force the margin release lever"rearward,

A thus assisting in withdrawing the release lever from the path of the tabulator stops.

If the tension of the carriage drive mechaiabnormally high, the present construction would make the release and return .of-the mechanism to normal position just as rapid as though a low tension wcreiused. It will readily be understood that the greater pressure on the release lever rearwardly and thus offset the increase in friction or binding. due to the increased tension of the carriage" If the angle of the side of the cavity whichcontacts with the screw were made sufliciently acute, the operation would be substantially automatic. As the tabulator stop forces'the release lever into contact with the screw the release lever itself will be forced rearwardly out or the path of the tabulator stop. By adjusting the screw 80 in either direction the point at'which the margin release lever will arrest the movement of the carriage can b1 controlled independent of the margin stop.

It will thus be seen that this mechanism is adapted to prevent binding and permits a rapid operation of the various. parts to normal position. It also provides means for end-- justing the margin release lever to compels.- sate for any irregularities or inaccuracies which may exist between the margin stop and the tabulator stops, inasmuch as they both coact with a common lever. In adjusting the carriage stops it is customary to adabove described, and by means of this separate adjustment the proper movement of the margin release lever coacting therewith is properly regulated.

The operation of this device should be the angle of the cavitv 81 pre sorted to the point of the screw 80 would increase the tendency of the angle to force obvious from. the above disclosure, although abriefdescription thereof is as follows:

As shown in Fig. 3', the carriage 1 has reached a letter-space position where an ac tuation or any type action will cause the margin stop 10 to engage and move the margin release lever 11 at thegrear of the machine. Any lateral movement of this release lever will exert a pivotal. action in dependently of the trunnion block to swing,

the free or outer end of the transverse arm rearward, causing the line-loclalng bail tea i travel of said margin stop,

out of the path of another key normally holding the movable stopin the path of the margin stop, a release key lever whereby said movable stop may be moved about a horizontal travel of said margin stop, another key lever whereby the movable stop may be move about the same axis into the pathof the tabnlator stop, means permitting a ,movement of said movable ston about a vertical axis when engaged by the tablilator stop or the mar n stop, and a line lock device rendered e ective by the last said movement.

8. In a typewriting machine, in combination, a margin stop, a tabulator stop, a movable stop cooperative with said stops, means normally holding the movable stop in the path of the margin stop, whereby said movable stop may be moved about a horizontal axis out of the path of another ke lever adapted to act through the first sai lever whereby the movable stop may be moved about the same axis into the path of the tabulator stop, and means permitting a movement of said movable stop about a vertical axis when engaged by the tabulator stop. V

9. In a typewriting machine, in combination, a margin stop, a tabulator stop, amovable stop cooperative with said stops, means D to its normalmovement, a connection betweenthe end of one lever and the escapenormally holding the movable stop in the path of the margin stop, a release key lever whereby said movable stop may be moved about a horizontal axis out of the path of travel of said margin stop, another key lever whereby the movable stop may be moved about the same axis into the path of the tabulator stop, means permitt ng a movement of said movable stop about a vertical axis when engaged by the tabulator stop,

and means connected with said second mentioned key lever whereby the step-by-step escapement of the machine is thrown out 10. In a typewriting mach1ne,1n combination, a margin stop, a tabulator stop, a-movcooperative with sa1d stops, means holding the movable stop 1n the path of the margin stop, a release key lever whereby said movable stop may be moved about a horizontal axis out of the path of travel of said margin stop, another key lever normally stop may be moved axis out of the path of a release key lever whereby the movablestop may be moved about the sameaxis mto the path of the tabulator stop,- means permitting a movement of said movable sto about/a vertical arms when engaged by t e tabulator stop, and means connected with said second men tioped key lever whereby the step-by-step escapement of the machine is thrown out and a carriage retarding device is operated.

11 In a typewriting machine, a movable can-1a e stop device comprising, in combinat1on,alock, alever pivotally mounted thereon,a rock shaft fixed to said block and havlng an axis of movement transversely of the axis of movement of said pivoted lever, and a spring normally urging said lever relatively to said block.

' 12. In a mechanism of the character de scribed, in combination, escapement mechanism, a carriage carrying mar lating stops, a coacting mova frame of the machine, tabulating an margin release key levers, both connected with said stop, said tabulatin and margin release key levers being pivote at difi'cront points, one being adapted to act on the other to. produce a movement of the other opposite to its nornal and tabule sto on the r mal movement, one of said levers being in the form of a bell crank'levei', and a connectron between the end of one arm and the escapement mechanism for throwing out the escapcment mechanism when depressed.

13. In a mechanism of the character described, in combination, escapement mechanism, a carriage carrying marginal and tabu lating stops, a coacting movable stop on the.

frame of the machine, tabnlating and margin release key levers, both connected with said stop, said tabulating and margin release key levers being pivoted at different points, one being adapted to act on the other.

to produce a movement of'the other opposite ment mechanism for/throwing out the eseapement mechanism when depressed, and a return spring connected to said arm adapted to aid in returning the parts to normal position.

14. In a mechanism of the character de- 

